# NTSB MKC90LA099: Grumman G-164B, N6788K, Lockwood, MO, April 27, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 27, 1990, 10:30 local (15:30 UTC)
- Place: Lockwood, MO
- Coordinates: 37.380092, -93.949638 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.3801&lon=-93.9496&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 28, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 34973
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC90LA099
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34973/pdf
- Page: https://openairdocs.org/ntsb/MKC90LA099

## Probable cause

TOUCHDOWN POINT NOT ATTAINED AND GO-AROUND NOT PERFORMED BY THE PILOT IN COMMAND. CONTRIBUTING FACTORS WERE A WET, GRASS RUNWAY.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - grass (contributing factor)
  - terrain condition - wet (contributing factor)
  - proper touchdown point - not attained, pilot in command (cause)
  - go-around - not performed, pilot in command (cause)
  - terrain condition - ditch

## Analysis

WHILE ATTEMPTING TO LAND ON A PRIVATE, WET GRASS STRIP, DURING AN AERIAL APPLICATION OPERATION, THE PILOT WAS UNABLE TO STOP THE AIRCRAFT AND IT COLLIDED WITH A DITCH.

## Aircraft

- Registration: N6788K (not matched to a registry record)
- Reported make and model: GRUMMAN G-164B
- Category: Airplane
- Serial number: 478B
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: T And R Ag Service, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Departed: LLU, LAMAR, MO
- Destination: MU27
- Airport: MU27, Woodfield, runway 18, 2,600 × 100 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 5,000 total

## Weather

- Conditions: Visual (VMC), Day
- Temperature: -0 °F, dew point -0 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19900427013229A](https://openairdocs.org/incident/19900427013229A), Apr 27, 1990: Scwzer G164B, Lockwood, MO, Substantial damage. Landed long on wet grass strip. Unable stop. Slid off end into a ditch. Failed to go around.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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